Hello. I've been experienceing some frustraiting issues with my Macbook. I recieved it last winter from my school, this was around the same time my PC broke down. I'm a person who sits quite a bit infront of the computer, this has resulted in that my macbook has taken quite a beating as I exercise all my digital needs on it (gaming, media, schoolrelated business). Lately (beginning around summer) my macbook has progressively been getting slower. E.g the computer freezing for 30 seconds up to a minute, programs running at a slow rate and when starting up the macbook it can take up 15-30 minutes until I can log in. At first I thought perhaps cleaning up some space from the hard drive would help, sitting around 100~gigs free of a total 250gb it hasn't really done anything. I don't really know where to continue from here onwards, any help would be appreciated. Thank you in advance.